Southbound I-5 and I-5 Express Lanes off-ramps to Mercer Street closed Aug. 23-26

Date: Aug 23, 2024 to Aug 26, 2024

Time: 10 p.m. Friday to 5 a.m. Monday

Activity details:

  • check mark icon Ramp closure
  • check mark icon High-impact construction
  • check mark icon Around-the-clock

Impact type:

  • check mark icon Traffic
  • check mark icon Noise

Description: Crews will close the ramps for a third consecutive weekend to work around a new concrete median barrier separating the southbound I-5 and I-5 express lanes off-ramps to Mercer Street.

Traffic: Crews will close the southbound I-5 and I-5 Express Lanes off-ramps to Mercer Street for construction beginning at 10 p.m. Friday, Aug. 23 until 5 a.m. Monday, Aug. 26. During the closure, crews will pave and do other tasks in support of the new concrete median barrier crews spent the last two weekends building. Once complete, this work will separate the two ramps, allowing for the express lanes ramp to become reversible upon the project's completion in fall 2024. All southbound drivers will need to exit north or south of Mercer Street during this time. Please note: The express lanes itself are not closed during this work, only the off-ramp to Mercer Street which is only in use when the express lanes are in the southbound direction.

Graphical map showing closure limits for Aug. 23-26 closure of the southbound I-5 and I-5 Express Lanes off-ramps to Mercer Street in Seattle.
Click on image to expand
Graphical map showing closure limits for Aug. 23-26 closure of the southbound I-5 and I-5 Express Lanes off-ramps to Mercer Street in Seattle.

Contact Info

Email: sr520bridge@wsdot.wa.gov
24-hour construction hotline: 206-316-2559

Note: This tool is presented for planning purposes only. Construction is inherently dependent on weather and other factors, and activities are subject to change.